Motorists speed past a traffic sign with a crashed vehicle on top on a road in Quezon City, east of Manila in the Philippines. The message below reads: "Buckle up, the life you save may be your own". Photograph: Noel Celis/AFP/Getty Images

Claire Provost: The UN has launched a 'decade for action' to tackle road traffic accidents, which kill more people around the world than malaria, and are the leading cause of death for young people – especially in developing countries. Get the data here